author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Tue, 31 Aug 2010 16:54:36 +0300 | |
branch | RCL_3 |
changeset 56 | acd3cd4aaceb |
parent 0 | e4d67989cc36 |
permissions | -rw-r--r-- |
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// Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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// All rights reserved. |
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// This component and the accompanying materials are made available |
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// under the terms of "Eclipse Public License v1.0" |
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// which accompanies this distribution, and is available |
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// at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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// |
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// Initial Contributors: |
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// Nokia Corporation - initial contribution. |
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// |
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// Contributors: |
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// |
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// Description: |
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// |
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#if defined (_MSC_VER) && (_MSC_VER >= 1000) |
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#pragma once |
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#endif |
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#ifndef _INC_RESOLVER_3A1D097B0305_INCLUDED |
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#define _INC_RESOLVER_3A1D097B0305_INCLUDED |
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#include <ecom/resolver.h> |
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#include "RegistryData.h" |
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class TEComResolverParams; |
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/** |
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@internalComponent |
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@since 7.0 |
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Controls the identification, (resolution), of which implementation |
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will be used to satisfy an interface implementation instantiation. |
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*/ |
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class CDefaultResolver : public CResolver |
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{ |
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public: |
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/** |
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@fn NewL(CRegistryData& aRegistry) |
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Intended Usage : Standardized safe construction which leaves nothing |
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on the cleanup stack. |
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Error Condition : Cannot fully construct because of memory limitations. |
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@leave KErrNoMemory |
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@since 7.0 |
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@return A pointer to the new class |
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@post CDefaultResolver is fully constructed, |
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and initialized. |
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*/ |
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static CDefaultResolver* NewL(MPublicRegistry& aRegistry); |
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/** |
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@fn ~CDefaultResolver() |
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Intended Usage : Standard default d'tor |
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Error Condition : None |
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@since 7.0 |
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*/ |
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~CDefaultResolver(); |
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/** |
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@fn IdentifyImplementationL(TUid aInterfaceUid, |
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const TEComResolverParams& aAdditionalParameters) const |
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Intended Usage : Request that the resolver identify the most appropriate |
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interface implementation. |
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Error Condition : |
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@since 7.0 |
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@param aInterfaceUid The interface for which implementations are requested |
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@param aAdditionalParameters Data to be used to refine the search further |
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@return The Uid of the best fit interface implementation - KNullUid if no match is found |
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@pre Object is fully constructed and initialized |
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@post Registry contents are not modified but registry keys may be updated |
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*/ |
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TUid IdentifyImplementationL(TUid aInterfaceUid, const TEComResolverParams& aAdditionalParameters)const ; |
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/** |
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@fn ListAllL(TUid aInterfaceUid, const TEComResolverParams& aAdditionalParameters) const |
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Intended Usage : List all the implementations which satisfy the specified interface. |
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Error Condition : |
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@since 7.0 |
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@param aInterfaceUid The interface for which implementations are requested |
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@param aAdditionalParameters Data to be used to refine the search further |
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@return Pointer to an array of suitable implementations. Ownership of this array |
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is passed to the calling function. |
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@pre Object is fully constructed and initialized |
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@post Registry contents are not modified but registry keys may be updated |
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*/ |
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RImplInfoArray* ListAllL(TUid aInterfaceUid, |
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const TEComResolverParams& aAdditionalParameters)const; |
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protected: |
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/** |
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@internalComponent |
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@fn CDefaultResolver(CRegistryData& aRegistry) |
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Intended Usage : Standardized default c'tor |
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Error Condition : None |
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@since 7.0 |
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@post CDefaultResolver is fully constructed |
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*/ |
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explicit CDefaultResolver(MPublicRegistry& aRegistry); |
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/** |
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@fn Resolve(const RImplInfoArray& aImplementationsInfo, |
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const TEComResolverParams& aAdditionalParameters) const |
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Intended Usage : Called by IdentifyImplementationL to select an appropriate |
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implementation from a list of possibles |
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@since 7.0 |
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@param aImplementationsInfo Information on the potential implementations |
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@param aAdditionalParameters The data to match against to detemine the |
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implementation |
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@return The Uid of the selected implementation - KNullUid if no match is found |
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@pre This object is fully constructed |
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*/ |
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|
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TUid Resolve(const RImplInfoArray& aImplementationsInfo, |
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const TEComResolverParams& aAdditionalParameters) const; |
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|
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private: |
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/** |
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@fn Match(const TDesC8& aImplementationType, |
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const TDesC8& aMatchType, |
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TBool aUseWildcards) const |
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Intended Usage : Searches for a match of a data type on an implementation type. |
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Match returns ETrue if aMatchType is found within aImplementationType according to |
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the following rules: |
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1) aImplementationType is treated as a series of descriptors separated by double |
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bars (||). ETrue is returned if aMatchType matches exactly any of the short |
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descriptors. If no double bar is present then aImplementationType is treated as a |
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single descriptor. |
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2) If aUseWildcards == ETrue then a '?' in aMatchType will be matched to any single |
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character and '*' will be matched to any series of characters. |
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@leave KErrNoMemory |
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@since 7.0 |
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@param aImplementationType The implementation data type to search for a match |
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@param aMatchType The data to search for |
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@param aUseWildcards ETrue if wildcard matching should be allowed |
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@return ETrue if a match was found, EFalse otherwise |
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@pre This object is fully constructed |
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*/ |
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|
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TBool Match(const TDesC8& aImplementationType, |
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const TDesC8& aMatchType, |
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TBool aUseWildcards) const; |
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protected: |
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|
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/** Required for test code to have access to internal state */ |
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friend class TDefaultResolver_StateAccessor; |
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}; |
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#endif /* _INC_RESOLVER_3A1D097B0305_INCLUDED */ |
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